Hello,
Application shall not bind ⌥letter or ⇧⌥letter shortcuts as those are used to type accented/special characters on various keyboard layouts.
TM follow this rule with one exception "Insert Scratch Snippet" that binds to ⇧⌥S which makes typing Ś (accented S) impossible in my case.
I believe this is a bug and this keyboard shortcut shall be corrected to i.e. ⇧⌃⌥S.
Filled at: http://github.com/textmate/textmate.tmbundle/issues/issue/1
Regards,
--
Adam